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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// type_traits
// is_integral
#include <type_traits>
#include <cstddef> // for std::nullptr_t
#include "test_macros.h"
template <class T>
void test_is_integral()
{
static_assert( std::is_integral<T>::value, "");
static_assert( std::is_integral<const T>::value, "");
static_assert( std::is_integral<volatile T>::value, "");
static_assert( std::is_integral<const volatile T>::value, "");
#if TEST_STD_VER > 14
static_assert( std::is_integral_v<T>, "");
static_assert( std::is_integral_v<const T>, "");
static_assert( std::is_integral_v<volatile T>, "");
static_assert( std::is_integral_v<const volatile T>, "");
#endif
}
template <class T>
void test_is_not_integral()
{
static_assert(!std::is_integral<T>::value, "");
static_assert(!std::is_integral<const T>::value, "");
static_assert(!std::is_integral<volatile T>::value, "");
static_assert(!std::is_integral<const volatile T>::value, "");
#if TEST_STD_VER > 14
static_assert(!std::is_integral_v<T>, "");
static_assert(!std::is_integral_v<const T>, "");
static_assert(!std::is_integral_v<volatile T>, "");
static_assert(!std::is_integral_v<const volatile T>, "");
#endif
}
class Empty
{
};
class NotEmpty
{
virtual ~NotEmpty();
};
union Union {};
struct bit_zero
{
int : 0;
};
class Abstract
{
virtual ~Abstract() = 0;
};
enum Enum {zero, one};
struct incomplete_type;
typedef void (*FunctionPtr)();
int main(int, char**)
{
test_is_integral<short>();
test_is_integral<unsigned short>();
test_is_integral<int>();
test_is_integral<unsigned int>();
test_is_integral<long>();
test_is_integral<unsigned long>();
test_is_integral<bool>();
test_is_integral<char>();
test_is_integral<signed char>();
test_is_integral<unsigned char>();
test_is_integral<wchar_t>();
#if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L
test_is_integral<char8_t>();
#endif
test_is_not_integral<std::nullptr_t>();
test_is_not_integral<void>();
test_is_not_integral<int&>();
test_is_not_integral<int&&>();
test_is_not_integral<int*>();
test_is_not_integral<double>();
test_is_not_integral<const int*>();
test_is_not_integral<char[3]>();
test_is_not_integral<char[]>();
test_is_not_integral<Union>();
test_is_not_integral<Enum>();
test_is_not_integral<FunctionPtr>();
test_is_not_integral<Empty>();
test_is_not_integral<bit_zero>();
test_is_not_integral<NotEmpty>();
test_is_not_integral<Abstract>();
test_is_not_integral<incomplete_type>();
return 0;
}
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